There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?
What begins with T, ends with T, and has T in it?
A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?
How do you go from 98 to 720 using just one letter?
What has a bottom at the top?
Find the hidden tiger in the given optical illusion ?
John can eat 27 chocolates in an hour, Jacob can eat 2 chocolates in 10 minutes, and Jolly can eat 7 chocolates in 20 minutes. How long will it take them to share and eat a box of 120 chocolates whilst playing Chess?
A professor thinks of two consecutive numbers between 1 and 10. 'A' knows the 1st number and 'B' knows the second number A: I do not know your number. B: Nor do I know your number. A: Now I know. What are the four solutions for this?
Before Mount Everest was discovered, what was the highest mountain in the world?
Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?
John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?
There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.